Cultivator



1933- w. SCHUMAN'N 1,922,219

CULTIYATOR Filed Aug. 7, 1930 Patented Aug. 15 1933 v v i H 'UNITEDSTATES PATENT OFFICE 25 a side View of the machine, and

CULTIVATOR Walter Schumann, Gornitz,wnear Leisnig,

Germany ,j ApplicationAu'gust 7, 1930, Serial No. 473,533, and in Germany June5, 1930 1 claim. (or 97-8) In the cultivation of turnips and the like a corner diagonally opposite thereto. The bar e T frequent heaping up of the earth against the is fitted with tines j which, owing to the shape of plant rows is necessary, for which purpose .hoe-' the bar, form, rows which are inclined to the ing machines are employed. Alternate wetting travelling direction of the machine. By this 5 and drying forms the earth into a crust which arrangement the lumps, instead of being pushed 60 is broken up into lumps under the action of the forward by the tines, will be divertedfrom one hoes, and to break up these lumps the hoeing tine to another and effectively broken up. The machines are Sometimes combined with a drill bars 0 and (1 may also be fitted with tines, at harrow or roller. least at the corners as shown.

The object of the present invention is to pro- The tines are screw-threaded and fitted with 65 duce a simple machine of this kind, and the nuts 9 and h whereby they are secured in aperinvention consists in the provision of a carrier tures in the bars. The lower nuts h may be beam connected by means of end brackets to a replaced by rigid shoulders.

wheel axle, a plurality of hoeing implements Each harrow unitis secured to the beam (1 by,

connected to said beam, and a plurality of means of an arm 1 and a clamp k which em- 70 harrow units connected by meansof arms braces both bars of the beam and which can be rigidly and adjustably to said beam so as to adjusted on the latter for regulating the distance a follow the hoeing implementaeach harrow unit of the harrow units from one another. The

, comprising a frame having asinuous or zig-zag harrow units are rigidly held by the arms 2' and shaped, bar to, which the tines are detachably can be raisedfrom the ground togetherwith the 7 connected, and earth-crashing disc rollers hoes b by the usual means. i mounted in bearing brackets depending from The harrow units may also be provided with each harrow frame. earth-crushing disc rollers p mounted on shafts Fig. 1 of the accompanying drawing represents 0. The bearing brackets Z for the latter may either be secured to extensions of the frames Fig. 2 is a top view of the same. members c, as shown in the drawing, or to the The machine has a frame comprising a carrier arms The brackets may be adjustable. beam -a composed of two parallel spaced bars. I claim: a r i Brackets q'at the endsof the beam are attached A beet hoeing machine" comprising a wheelto an axle ,r mountedin ground wheels 8. Com supported tool bar, a pluralityof harrow units nected to the beam (1 is a plurality of hoeing each comprising'a squareframe, a zig-zag bar implements!) andalso adrill harrow comprising carried diagonally across each of said frames,- a plurality of units'arranged so as to follow the tines secured detachably to said zi'g-zag bars and hoes, one unit between each pair of plant rows; to the; frame members, and arms whereby the Each unit comprises a rectangularframe comharrow unitsare rigidly connected to said tool 90 posed of longitudinalbars cfand cross'bars (1 bar inadjustable spacing i r and in addition a bar e" carried sinuously or in 1 i zig-zag from one corner of the frame to, the q WALTER SCHUMANN;

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